Relegation from the league:
Each team's points from participation in the 2016/2017, 2017/2018 and 2018/2019 Prim B Nacional are summed, and that total is divided by the number of games played during that period.
Teams are ranked in a Promedio table, based on the resulting average score.
23-25 place in the Promedio table: relegated to Prim B Metro or Torneo Federal A

Promotion to the league:
2 teams from Prim B Metro
2 teams from Torneo Federal A

Promotion Play-off:------------

Format:
8 teams from the Regular Season contest one place in Superliga in a knockout format.
Teams are ranked 1st-8th according to their Regular Season standings.

Quarter-finals:
Teams are paired according to their ranking:
1st vs 8th;
2nd vs 7th;
3rd vs 6th;
5th vs 4th.
Winners are decided over two legs.
The higher placed teams from the Regular Season host the second legs.

Semi-finals:
Teams are paired according to their ranking:
best ranked - worst ranked;
2nd best ranked - 3rd best ranked.
Winners are decided over two legs.
The higher placed teams from the Regular Season host the second legs.

Final:
The two Semi-finals winners meet each other with the winner becoming Promotion Play-off winner.
Winner is decided over two legs.
The higher placed team from the Regular Season hosts the second leg.

Tie-breakers for the Promotion Play-off ties over two legs:
1. aggregate score from the two legs, 2. penalties.